The setback came as the WHO also reported more than 200,000 new cases globally of the disease for the first time in a single day
Swiss drugmaker Novartis is halting its trial of malaria drug hydroxychloroquine (HCQ) against COVID-19 after struggling to find participants
The medicine has been touted by US President Donald Trump, who has said he used it as a prophylaxis against the novel coronavirus.
The WHO suspended trials of the drug that Donald Trump has promoted as a coronavirus defence.
Looking at the records of 96,000 patients across hundreds of hospitals, researchers found that administering the drugs actually increased the risk of dying
President Donald Trump on Monday made the surprise announcement that he is taking hydroxychloroquine, an anti-malaria drug that his own government experts say is not suitable for fighting the novel coronavirus.